The global humanoid robot battery supplier landscape includes 50+ companies across three tiers — international leaders, domestic Chinese leaders, and domestic specialized experts. The key selection dimensions are energy density (260–500 Wh/kg), discharge rate (3C–50C), operating temperature (−40°C to 80°C), form factor fit, and BMS integration depth. Solid-state batteries dominate the development roadmap across all tiers, with commercial-scale deployment expected between 2026 and 2028.
If you are evaluating battery technologies rather than suppliers, you may also find our guide on humanoid robot battery selection helpful, which explains how to choose battery chemistry, energy density, discharge rate, thermal management, and safety systems for different robot applications.
Why Battery Selection Matters More Than Ever
Humanoid robots are moving fast — from lab demos to factory floors, warehouses, and field operations. As deployment scenarios diversify, the battery pack has become one of the most critical system-level decisions a robot manufacturer makes.
Three pressures are reshaping the supplier landscape right now:
Energy density is hitting a ceiling with liquid lithium. Most current liquid lithium packs plateau at 280–350 Wh/kg. For high-dynamic robots that need extended runtime without adding weight, that’s not enough. Solid-state cells targeting 400–500 Wh/kg are now in validation at multiple Tier 1 suppliers, with mass production converging on 2027.
Robot bodies don’t fit standard battery formats. Humanoid structures have irregular internal cavities — torso, waist, limbs — that standard prismatic or cylindrical cells can’t efficiently fill. Custom pouch cells and conformal pack designs are quickly becoming a differentiator rather than a niche request.
Real-world environments are harsh. Factory inspection robots, outdoor logistics platforms, and emergency response units face simultaneous exposure to vibration, humidity, temperature extremes, and high pressure. A cell that performs well in a lab environment isn’t the same as a pack engineered to survive 10,000 field cycles.Understanding which supplier is right for which scenario requires matching their actual core competency to your robot’s operating profile — not just comparing headline specs.
The following overview maps 50+ suppliers by tier for quick matching.
International Leading Suppliers
Panasonic
The exclusive 21700 cylindrical cell supplier for the Tesla Optimus humanoid robot. The cell manufacturing process is mature with extremely high consistency. The thermal management system is deeply coupled and debugged with the entire robot. Simultaneously developing next-generation solid-state cells designed for humanoid robots.
Suitable Scenarios: High-end, high-dynamic humanoid models overseas.
Samsung SDI
Co-developing high-power cylindrical cells designed for humanoid robots with Hyundai Kia, focusing on enhanced thermal safety protection and instantaneous discharge capability. Concurrently advancing the iteration of solid-state technology adapted for humanoid robots. Multiple samples have entered the real-world testing and validation phase with leading humanoid models.
LG Energy Solution
A globally leading cylindrical battery supplier offering wide-temperature-range adaptability and balanced high-rate discharge performance. Proactively developing lightweight solid-state battery solutions for humanoid applications, with a deep focus on the industrial and service humanoid robot markets in Europe and America.
SK On
Locked onto the high-silicon anode + sulfide-based solid-state technology route, specifically targeting the pain point of instantaneous high-power output for humanoid robots. Plans to launch a dedicated battery prototype in 2026, with commercial realization of solid-state batteries expected between 2027-2028.
VARTA
A veteran European power battery company with well-established battery safety redundancy design and stable overall performance. Has long provided power systems for industrial and service humanoid robots in Europe and America, while simultaneously iterating on miniaturized, high-safety solid-state samples.
QuantumScape
A pioneer in all-solid-state batteries, its sulfide-based system boasts an energy density exceeding 450 Wh/kg. With strategic investment from Volkswagen, it is developing next-generation batteries for humanoid robots.
Factorial
A global benchmark in solid-state battery technology with a self-developed oxide solid electrolyte. Energy density exceeds 420 Wh/kg and it safely passed nail penetration, crush, and high-temperature tests. Collaborating with POSCO to target the humanoid robot market, providing high-safety, long-cycle-life solid-state battery solutions for high-end models in Europe and America. It has already secured designated partnership intentions from several international robot manufacturers.
RRC
A specialized supplier of industrial-grade, high-power battery modules for humanoid robots. It uses a lightweight, shock-resistant structural design, specifically adapted for rigorous conditions like dynamic gait walking and complex road surface impacts. It is also simultaneously developing industrial, humanoid-dedicated solid-state module solutions.
Saft
A leader in military-grade specialty batteries, offering wide-temperature, high-safety, and long-life solutions suitable for industrial and special robot scenarios.
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Has set extremely high standards for battery safety. The F.03 battery features a multi-layered safety architecture where almost every component integrates multiple functions, achieving a high pack efficiency ratio, lower cost, and reduced complexity.
CM Batteries（CMB）
Most battery cell suppliers listed here optimize for volume and cost at the cell level—which works well for standardized platforms. Where they fall short is in the final integration layer: turning those cells into a pack that actually survives the mechanical stress, thermal cycles, and environmental exposure of real-world industrial humanoid deployment.
CMB specializes precisely in this gap. As a custom lithium-ion battery pack manufacturer with a military-grade durability track record in heavy machinery, aerospace, and emergency response, CMB provides one-stop battery pack solutions that cover cell selection, pack architecture, BMS development, thermal management design, and field validation under extreme conditions—high temperature, strong vibration, high humidity, and high pressure.
For industrial humanoid robots operating in non-standard environments, the practical question is rarely “which cell has the highest energy density” but rather “which pack will still perform reliably after 10,000 shock cycles in a −30°C mining environment.”
Leading Suppliers in China
CATL (Contemporary Amperex Technology Co., Limited)
The industry leader is strategically targeting the humanoid robot market, having formed a dedicated robotics R&D team. Its mature liquid cells are already stably supplied for leading models like the Unitree H1 and Tesla Optimus. Its self-developed condensed matter and sulfide-based all-solid-state batteries have surpassed 500 Wh/kg in energy density with excellent temperature rise control during nail penetration tests. Combined with a self-developed high-precision BMS and an integrated liquid cooling system, it leads the industry in temperature control uniformity. Small-scale mass production is expected to begin in 2027.
Suitable Scenarios: Power solutions for high-end, industrial-grade humanoid robots.
EVE Energy
A core benchmark enterprise for humanoid solid-state batteries. Its “Longquan No. 2” all-solid-state battery has entered mass production, and its dedicated solid-state production line in Chengdu is officially operational, with a cell energy density reaching 300 Wh/kg. It is deeply partnered with major brands like UBTECH, Vita Dynamics, and XPENG Iron, balancing high-rate discharge performance with ultimate safety.
Suitable Scenarios: High-end commercial and consumer-grade humanoid robots.
Sunwoda
A core and main battery supplier for the Unitree H1, focusing on high-rate pouch liquid lithium and semi-solid-state products. Energy density ranges from 280 to 350 Wh/kg, supporting 3C fast charging and 20C peak discharge with strong dynamic response performance. Also supplies the power system for GAC GoMate humanoid robots.
Suitable scenarios: Mass-produced, high-dynamic humanoid robots.
Azure V WeShare
A core and primary supplier of high-rate cylindrical batteries for humanoid robots, mainly offering 21700-format cells. Advantages include strong explosive power, vibration resistance, and high consistency. It exclusively supplies high-dynamic humanoid and quadrupedal robots like the Unitree H1.
Suitable Scenarios: The preferred cylindrical cell solution for the industry’s high-dynamic biomimetic models.
CALB
Its self-developed silicon-based all-solid-state battery has broken through 430 Wh/kg in energy density, with a dedicated production line already built and operational. It has established deep project cooperation with leading domestic humanoid robot companies and is steadily advancing small-scale applications at the thousand-unit level.
Gotion High-tech
The official main battery supplier for the Xiaomi CyberOne, employing a balanced ternary pouch + semi-solid-state technical route to achieve an optimal balance between energy density, safety performance, and manufacturing cost. Its all-solid-state “Jinshi Battery” is in the pilot mass production stage, with a cell energy density of 350 Wh/kg.
Suitable Scenarios: Home and commercial low-speed service humanoid robots.
FinDreams (BYD)
A leader in blade battery technology, having launched a blade battery pack (LFP/NMC) specifically for humanoid robots. Advantages include high safety, long life, and low cost, with the blade structure being compact and having high space utilization.
Suitable Scenarios: Robots for multiple scenarios, including industrial and home use.
BAK Battery
A benchmark company for all-tab cylindrical cells, perfectly suited for the demanding conditions of robots like instantaneous high-current output and wide-temperature-range operation. Its self-developed solid-state battery has an energy density of 360 Wh/kg and has successfully passed extreme safety tests such as nail penetration, short circuit, and crush.
Suitable Scenarios: High-dynamic scenarios.
Changhong Energy
A strategic core supplier for Unitree Technology, fully covering the entire G1 and R1 series of humanoid robot products. In 2025, it secured large-scale orders worth tens of millions. It can simultaneously supply the main body battery, computing backpack power, and dedicated lithium batteries for dexterous hands.
Suitable Scenarios: Mature supply system for comprehensive scenarios.
China Specialized Expert Suppliers
WeLion New Energy
A domestic leader in semi-solid-state batteries. Its pouch batteries designed for humanoid robots have an energy density of 320-380 Wh/kg and are already stably supplied as samples to leading models like the XPENG Iron and UBTECH. It represents the semi-solid-state solution with the lowest mass-production risk and strongest feasibility currently.
Qingtao Energy
A core representative of oxide solid-state batteries, offering ultimate safety and an ultra-wide temperature adaptation range. Cell energy density is 380-450 Wh/kg. It primarily serves humanoid robots with high safety requirements, such as in medical, public safety, and specialized operations, and leads the industry in technological implementation maturity.
Lishen Battery
Simultaneously developing both cylindrical and pouch battery lines. Its 21700 high-rate cells offer balanced performance and ample explosive power, suitable for high-end humanoid models like the Tesla Optimus and Unitree H1, which have very high demands for instantaneous power and dynamic response.
SVOLT Energy Technology
Has specifically optimized low-temperature discharge performance. It is advancing on dual tracks with high-rate lithium and semi-solid-state products, perfectly suited for outdoor scenarios like inspections, emergency rescue, and polar operations, effectively controlling the problem of endurance degradation in low-temperature environments.
Ganfeng Lithium
The 324 Wh battery pack developed and produced for the robotics field is already used in products like quadrupedal and humanoid robots. At full capacity, it can produce 600 sets of robot battery packs per day. Its high-energy-density battery achieves a range of 15 kilometers and is equipped with a three-dimensional safety protection system to ensure stable operation in extreme scenarios.
Tianneng
The “Pulse” solid-state battery, specifically for robots, leverages its core technical advantages of high-rate performance, ultra-long cycle life, and excellent safety to successfully overcome the endurance and power bottlenecks of high-end mobile robots. It builds a reliable energy cornerstone for the stable, efficient, and long-duration operation of embodied robots.
Cham Battery
A professional lithium battery PACK and BMS system manufacturer, focused on humanoid robot battery pack integration and thermal management design. It provides customized powertrain solutions compatible with various cylindrical and pouch cells and has completed development and mass production of matching modules for multiple domestic robot manufacturers.
Hanshan Intelligent Technology
An exclusive supplier of mainstream standardized battery modules for humanoid robots. The core Highpeak module adopts a 381mm universal detachable architecture, supports hot-swap fast battery exchange, and features a millisecond-response intelligent BMS. It comes standard with a one-active, one-standby redundant battery set, ensuring uninterrupted and stable robot operation and significantly reducing secondary development costs for equipment manufacturers.
Suitable Scenarios: The preferred standardized module solution for mass-production implementation projects.
Hoppt Battery
A leading company for irregularly shaped pouch batteries for humanoid robots, specializing in fitting into the irregular and narrow spaces of the torso and waist. Supports -40°C low-temperature charging and 5C-10C high-rate discharge.
Suitable Scenarios: Various structurally compact, lightweight humanoid models.
Rui En New Energy
Utilizes a tabless battery structure design, achieving stable power output over an ultra-wide temperature range of -40°C to 80°C with excellent consistency during high-power discharge. It is specifically adapted for humanoid robots operating in extreme scenarios like deserts, high-altitude cold mining areas, and polar regions.
Heyuan Lithium
Focuses on the R&D and integration of customized power systems for humanoid robots. It performs lightweight optimization and integrated thermal management design based on the robot’s body cavity structure, perfectly adapting to installation in irregularly shaped compartments and high-dynamic operational conditions.
Greenworks
Leverages mature high-power lithium battery technology and adapts it for the humanoid robot sector, completing specific optimizations for the robots’ dynamic operating conditions. Its battery packs have passed rigorous testing by Agibot and have achieved batch supply.
Talent New Energy
A core emerging domestic supplier of solid-state batteries for embodied humanoid robots, it launched a dedicated “Safe+” embodied intelligent solid-state battery solution. It has passed stringent tests including full-mapping short-circuit, extreme overcharge, and high/low-temperature shock tests, maximizing safety. It has already signed delivery contracts with leading domestic humanoid robot companies and is conducting large-scale, multi-scenario real-world tests.
Suitable Scenarios: Humanoid models for all-weather, complex operating conditions.
Jun En New Energy
A specialized solid-state battery joint venture established by Joyson Electronics and Enpower Energy, focusing on exclusive solid-state batteries for embodied humanoid robots. Leveraging Enpower’s core high-specific-energy solid-state technology and Joyson’s advantages in automotive-grade BMS (Battery Management System) and energy management, it provides an integrated solid-state solution of “cell + BMS support + data services.” Samples have completed evaluation with leading robot enterprises, and its implementation progress is industry-leading.
Xin Jie Energy
A professional manufacturer of pouch all-solid-state batteries for humanoid robots, specializing in ultra-high energy density flexible solid-state cells. Its core product energy density reaches 480 Wh/kg, meeting the lightweighting needs of irregularly shaped cavities in humanoid robots. It has stably supplied customized products for models like the UBTECH Walker X and EngineAI PM01/T800.
Suitable Scenarios: The preferred solid-state solution for consumer-grade and high-end commercial humanoid robots.
GrePow
Deeply engaged in the high-rate polymer lithium and semi-solid-state battery fields. Its core self-developed cell energy density can reach over 450 Wh/kg, supporting an ultra-high continuous discharge rate of 50C. Voltage drop is controlled within 5% under harsh conditions, and the thermal runaway trigger temperature exceeds 200°C. It possesses integrated customization capabilities for cells, BMS, and battery packs, allowing for exclusive adaptation to a robot’s irregularly shaped cavity and lightweighting needs.
Highpower Technology
A global benchmark enterprise for the mass production of micro high-density batteries, it is one of the few core manufacturers in the industry capable of simultaneously supplying batteries for AI intelligent terminals and humanoid robots in bulk. It boasts a mature supply chain system and comprehensive automotive-grade quality control standards. Its primary offerings are customized lithium battery products with high consistency, long cycle life, and slim-fit profiles, capable of meeting multi-dimensional power supply needs for humanoid robot dexterous hands, main torso batteries, and auxiliary computing power batteries.
Suitable Scenarios: Various types of service humanoid models, including those for home companionship, commercial guidance, and medical care.
Desai Battery
Specializes in customizing integrated battery packs and BMS (Battery Management System) systems for high-speed competitive and high-frequency biomimetic humanoid robots. It holds shares in solid-state battery production lines and is developing humanoid-dedicated solid-state technology, which has been fully validated under high-vibration and high-power operating conditions.
Suitable Scenarios: High-performance humanoid models for high-frequency dynamic tasks.
Ampace
Possesses mature technology in high-rate, high-power lithium battery systems, while simultaneously developing high-safety solid-state solutions for humanoid robots. It primarily offers power solutions for high-speed, high-load humanoid robots and has extensive implementation experience in competition-level and industrial-grade scenarios.
Scud
A veteran lithium battery manufacturer with a comprehensive product line of high-rate cylindrical and pouch batteries, offering cost-effective power solutions for humanoid robots suitable for mid-range mass-produced models. It possesses deep expertise in battery forming processes and reliability.
Linkage Tianyi
Linkage Tianyi features three specialized cylindrical cell series (21700-P/T/U). Additionally, they offer excellent cycle life, low self-discharge, minimal voltage differential, ultra-low-temperature performance, and high power output. As a result, they are well suited for robot battery packs operating under multi-series/multi-parallel configurations, long-term storage, frequent start-stop cycles, and extreme temperatures.
Greenway
An expert in industrial-grade lithium battery customization, focusing on the R&D of specialized power battery packs for humanoid robots. With the capability to adapt to harsh environments, it provides waterproof, shockproof, and wide-temperature-range power solutions, supplying in bulk to industrial-grade and outdoor-type humanoid robot enterprises.
Far East Battery
The company’s newly developed 21700-6000mAh cylindrical battery pack has been successfully integrated into the fourth-generation industrial quadrupedal robot developed by a leading domestic science and innovation center. Energy output efficiency improved by 27% compared to the previous generation, and the cycle life can reach up to 1000 cycles. Small-scale deliveries have already been achieved.
Transimage Technology
Partnered with Qingtao Energy to create a dedicated hybrid solid-state module for humanoid robots. The system energy density is 320 Wh/kg, with excellent overall robot endurance. Mass production is expected in 2026, making it a preferred solution for performance upgrades in mid-range humanoid models.
Great Power
Its main products are safe, long-cycle-life LFP (Lithium Iron Phosphate) batteries with low failure rates, widely used in many industrial scenarios. It is developing a second-generation solid-state battery (with an energy density reaching 320 Wh/kg) to meet the needs of humanoid robots for high energy density, small volume, and resistance to mechanical stress.
Zhuhai CosMX
Its main product is pouch lithium-ion batteries, suitable for robot applications sensitive to volume. The energy density reaches over 260 Wh/kg, cycle life exceeds 800 cycles, and the capacity retention rate is over 90% at a 3C discharge rate.
Narada Power
Offers military-grade solid-state/LTO (Lithium Titanate Oxide) batteries with ultra-low temperature adaptability down to -40°C, supplying companies like Unitree and Deep Robotics.
Rept Battero
The Wending® solid-liquid hybrid high-nickel battery uses a solid electrolyte coating on the high-nickel cathode to enhance interface and thermal stability. It boasts an energy density of 280-400 Wh/kg, a cycle life of over 2000 cycles, and supports a wide operating temperature range from -40°C to 60°C, suitable for emerging applications like robots and eVTOL (electric Vertical Takeoff and Landing) aircraft.
Shen An Lithium Energy
Among the first to enter the blue ocean market of drones and robots with urgent demands for battery endurance, its successfully developed 400 Wh/kg high-specific-energy solid-state battery significantly leads competing products in the market. It has completed validation and small-batch delivery with several leading customers in the industry.
Heyi New Energy
A rising star in solid-state batteries, achieving an energy density of ≥400 Wh/kg for silicon-based anode semi-solid-state and ≥500 Wh/kg for lithium metal solid-state batteries. It has signed a strategic cooperation agreement with Kuang-Chi Technology for humanoid robots, providing an integrated solution of metamaterials and solid-state batteries, suitable for lightweight, high-safety, high-end models. It has entered the validation phase with leading manufacturers.
Golden Feather New Energy
Its “Boundless” all-solid-state lithium metal battery has an energy density exceeding 450 Wh/kg, featuring proprietary self-generating anode technology and a lithium-zirconium-aluminum-chlorine-oxygen solid electrolyte, reducing cycle pressure to 5 MPa. The “Wanshan” semi-solid-state battery supports 12-minute ultra-fast charging and has secured orders from international leading robot customers.
Weihang New Energy
Strategically positioned in both the low-altitude economy and embodied intelligence sectors. Its semi-solid-state batteries achieve an energy density of 360 Wh/kg, its entire series has passed the nail penetration safety test, and it exhibits excellent low-temperature performance at -40°C. It provides lightweight, wide-temperature-range power solutions for legged and quadrupedal humanoid robots. Products are in the sampling validation and small-batch pilot production stage.
Jinghe Energy
A Tsinghua-backed solid-state battery enterprise, its sulfide-based system has an energy density exceeding 450 Wh/kg. It was the first globally to mass-produce a 60Ah all-solid-state battery, equipped with an AI-BMS intelligent management system, and has secured targeted development intentions from leading customers.
Rongjie Energy
Deeply engaged in the power battery and energy storage tracks, it is developing dedicated high-rate cylindrical cells and LFP (Lithium Iron Phosphate) packs for humanoid robots. Its main offerings are cost-effective, high-stability power solutions suitable for the mass production of mid-range industrial and service robots. Its supply chain is highly self-controllable.
Nuoda Smart
The largest manufacturer of 21700 lithium batteries in South China, with strong capabilities in the cylindrical cell field. It has established long-term strategic cooperation with leading enterprises in the humanoid robot sector.
Blue Lithium Energy
Provides differentiated battery solutions for different types of robots. Its high-rate discharge and deeply structurally integrated solutions are suited for the needs of humanoid robots, which feature frequent movements, large load variations, and high sensitivity to power output, safety, and weight.
Guihang New Energy
To meet the 50A high-current discharge demand of a 48V battery system, it provides NMC (Ternary Lithium) cells in a 13-series structure with a 10C high-rate discharge (instantaneous current 50A). The sheet metal casing structure is dustproof and shockproof, meeting an IP54 (Ingress Protection 54) rating. Capacity retention after 1500 cycles is ≥80%, suitable for all-weather operation.
Zhongqing New Energy
Deeply engaged in solid-state power systems for small and medium-sized commercial humanoid robots. Its customized pouch solid-state cells are adapted for compact body structures and demonstrate excellent endurance stability and cycle consistency. Small-scale solid-state battery deliveries were achieved by the end of 2025, suitable for high-end home and commercial service humanoid models.
Moja Robot
An exclusive robotics brand under Chery Group, relying on the automaker’s mature lithium battery R&D heritage to self-develop dedicated all-solid-state batteries for humanoid robots. Plans are to complete small-scale implementation testing in 2026 and achieve commercial integration in 2027.
Fengyun Battery
Offers high-power solutions using 18650/21700 cells, featuring 30A instantaneous discharge and a wide temperature range down to -40°C. With a cycle life exceeding 3000 cycles, it provides long-life, low-cost packs for legged and industrial humanoid robots.
Summary: How to Find the Right Supplier from 50+
After reading through this list, you’ve probably noticed something: there are a lot of suppliers, but the ones that actually fit your specific requirements are far fewer than they appear.
Lock in your technology roadmap before you talk timelines.
Liquid lithium batteries are available at scale today, but their energy density ceiling is real. Solid-state batteries offer higher density, but most are still in validation or early small-batch production — how much roadmap uncertainty you can absorb depends entirely on when you need to ship.
Know the difference between buying cells and buying a battery pack.
Most top-tier cell manufacturers sell cells — not a complete power system ready to drop into your robot. When it comes to actual deployment, you still need structural fit, BMS co-development, thermal management, and environmental validation. That typically requires a manufacturer with real integration capability to pull it all together, not a patchwork of separate vendors.
Non-standard environments change everything.
If your robot operates in a controlled indoor setting, most mainstream suppliers can cover you. But if your operating conditions are demanding — high-vibration mining sites, sub-zero storage environments, outdoor inspection duty — you need a supplier with real-world delivery experience in those conditions. Spec sheet numbers won’t tell you that.
Start with your scenario, not your specs.
A high-dynamic biped running in a climate-controlled factory and an inspection robot operating at −30°C in a mine are completely different problems. If you’re still filtering by “higher energy density is better,” you’re likely heading toward a costly mismatch.
CM Batteries (CMB) specializes in custom power systems for industrial humanoid robots, offering end-to-end solutions from cell selection and pack architecture to BMS development and full environmental validation. If you have a custom requirement, pls to connect directly with our engineering team.
